Selecting A Pressure Switch for Hazardous Environments
Need some help selecting the right pressure switch in an environment with H2S present.
By otised on 23 January, 2015 - 10:42 am
The main issue with H2S is its corrosiveness. It will destroy copper and many other metals. Gold...
Valve Couplers FD0-VC-Ex4.FF
Posted by Stephen Haruna on 21 January, 2015 - 7:18 am
We intend to integrate an MOV (TEC2000) via DeltaV Explorer with a Foundation Fieldbus FF-H1 card and a Pepperl-fuchs Valve Coupler FD0-VC-Ex4.FF
By Steohen Haruna on 22 January, 2015 - 8:36 am
well, the FF positioners can be wired to/from the valve coupler using the 2:1 procedure and also...
Re-ranging a Pressure Transmitter
Need to re-range a pressure transmitter from 0 - 60 mbar to -30 to 30 mbar.
By Roy Matson on 31 December, 2014 - 12:34 pm
How can we answer if we don't know the model number My guess is yes you can since you are not...
Purchasing a New HART Communicator
Looking for advice on selecting a new HART Communicator for power plant.
By rootboy on 20 January, 2015 - 9:37 am
I have a ProComSol Bluetooth HART modem (to keep my laptop as far away as possible from the sticky...
I/O Mapping of Sub-Control System
What is I/O Mapping? Is it same as Interfacing Description of instrument?
Coriolis Mass Flowmeter Does Not Stop Counting.
Promass 80 Endress + Hausser keeps measuring mass flow with closed valves.
What is the easiest way to strip a HART signal?
By Roy Matson on 9 January, 2015 - 1:15 pm
If your HART signal is indeed interfering with the analog input how about sharing the information...
By Jorge Muñoz on 9 January, 2015 - 9:27 am
I am sorry for my English. You don't have problems with hart signal because the average...
Insertion Length of RTD/TC
How can I calculate the insertion length of an RTD/TC in a duct?
By Roy Matson on 9 January, 2015 - 1:29 pm
I just explained that you do not need to have the probe extend to the middle of the duct, this...
By rvsaradhi on 9 January, 2015 - 10:16 am
Dear sir, please note that insertion length calculation = 4500/2 = 2250 + 300mm (After duct out...
By Roy Matson on 31 December, 2014 - 1:12 pm
There was a time when we would try to get the probe near mid way which would be 4500/2 + 550 = 2800...
Need options for variable level flow measurement for underground process water.
By rvsaradhi on 6 January, 2015 - 12:55 pm
please, you can try clamp on ultrasonic flow meter which is very cheap with totalizer with 8...
Bently Nevada Vibration probes
Replacement of Bently Nevada vibration probe model 86205-A02-B01 WITH EQUIVALENT ALTERNATE PROBE
Spare Wiring at the Marshaling Cabinet
What to do with the spare wiring at the marshaling cabinet?
By DaveMH on 23 December, 2014 - 4:21 pm
I'm sorry gents but I can't quite believe what I'm reading. Take care of yourselves and your...
Automatically Measuring the Width of a Roll of Fabric
Measuring the width of a fabric roll in an automatic mode as it is moving.
By Bob Peterson on 29 December, 2014 - 10:45 am
if there is a place where the fabric is relatively taut you might be able to put a spring loaded...
Intrinsically Safe Circuits
How to explain why you shouldn't remove the cover of an Ex device.
Coriolis density measurement
Student project in coriolis density measurement.
By Manish Kumar Singh on 22 December, 2014 - 12:41 am
Dear Mr. JMW, Can you tell me if variation in density of the fluid will affect the mass flow...
Endress + Hauser level transmitter
4-20mA E+H level transmitter that fluctuates when running a process of 1000 degree celsius.
Level Control for Water Tank
What kind of level sensors to be used to control the water level in a tank provided there will be level sensors to monitor 3 specific points in the tank.
By PLC_Programmer on 18 December, 2014 - 11:22 pm
A pressure Transmitter can be used for the same. Use it in the exhaust pipe before the isolation...
Different Ways of Calculating Instantaneous Torque From a Servo
Posted by John Alperto on 8 December, 2014 - 7:52 pm
I want to calculate the instantaneous torque from a servo. I was wondering if this can be done using the current draw, or externally using an accelerometer.
Coal Bunker Level Detection
At the coal mine I am working at, there is a desperate need for a full automation of the Tripper cars off loading the coal from the conveyor belt into the coal bunker.
By Walt Boyes on 15 December, 2014 - 8:26 am
There are several solutions, but none of them are inexpensive, and you may have already considered...
Need help finding a laser sensor
Calculating control valve travel for normal condition